CN102513519A - Method for making composite steel by composite steel ingot casting and single-heating rolling - Google Patents
Method for making composite steel by composite steel ingot casting and single-heating rolling Download PDFInfo
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- CN102513519A CN102513519A CN2011104429741A CN201110442974A CN102513519A CN 102513519 A CN102513519 A CN 102513519A CN 2011104429741 A CN2011104429741 A CN 2011104429741A CN 201110442974 A CN201110442974 A CN 201110442974A CN 102513519 A CN102513519 A CN 102513519A
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Abstract
The invention discloses a method for making composite steel by composite steel ingot casting and single-heating rolling, which making the composite steel by using alloy steel such as high-carbon steel, high-carbon martensitic stainless steel, spring steel, bearing steel and high-speed steel as a steel core and common steel, martensitic stainless steel or austenitic stainless steel as substrate steel and by using casting composite steel ingot, finishing and heating. The method for making the composite steel by composite steel ingot casting and single-heating forming has the advantages of simple process, low machining cost, high yield, excellent adhesion, big compression ratio, and clear steel and iron and is suitable for batch production and combination of high-carton tool materials.
Description
Technical field
The present invention relates to a kind of manufacturing approach of clad steel, relate in particular to the method for a kind of compound steel ingot casting and heating once and rolling bimetal.
Background technology
Clad steel is a kind of composite, belongs to metal and metal composite scope, is mainly used in the raw material of making all kinds of cutters.At present, the method for producing clad steel both at home and abroad mainly adopts the compound and compound two kinds of technologies of hot rolling of blast, and its characteristics are respectively:
1, blast is compound: combined strength bination is better, but cost is expensive, needs to carry out in special mountain area, and lumber recovery is low, also need carry out multiple tracks hot-working, cold working.Be mainly used in national major project engineering, like space flight, military project etc.In the general product for civilian use and industrial products, do not have advantage on the price, and the compound length of material that explodes is limited, using has limitation.
2, hot rolling is compound: technology is simple relatively.But two, the compression ratio of three kinds of material hot rollings is very little, and its product only is applicable to the mechanical bit of excision forming, is not suitable in punching press, making other parts, the composite bed easy of crack.In addition, hot rolling is compound to acquire a certain degree of difficulty to some special steel (like high-speed steel) and the compound of ordinary steel, and bonding is not very desirable, and qualification rate is on the low side.
Summary of the invention
The object of the invention is to solve the problems referred to above that prior art exists, and the method for a kind of compound steel ingot casting and heating once and rolling bimetal is provided.
The objective of the invention is to realize like this: the method for a kind of compound steel ingot casting and heating once and rolling bimetal, it is characterized in that, may further comprise the steps:
The preparation of A, steel core
According to the requirement of clad steel final finished, the width and the thickness of design steel core, the intercepting steel are as steel core; Steel core is processed through grinding, thoroughly removes blemish, corrosion, makes steel core surface bright and clean and expose metal true qualities, apparatus for welding and positioning on steel core then;
B, casting are prepared
Steps A gained steel core is positioned in the punching block; Before steel core is placed the entering punching block, with grinding or cleaning equipment steel core surface is carried out single treatment again, thoroughly remove the remaining corrosion and the defective on surface, keep bright and clean and expose the metal true qualities;
C, casting
Steel core is cast with the molten steel of body steel after being positioned in the punching block, and cast temperature is controlled at 1600-1640 ℃, and more than 4 hours, the demoulding obtains compound steel ingot with the mould cooling;
The finishing of C, compound steel ingot
After the compound steel ingot demoulding, remove remaining burr, and finishing is carried out with emery wheel in defective position, surface;
D, heating once and rolling are become a useful person
Compound steel ingot direct heat is rolled into band steel or band steel, carry out necessary subsequent treatment then, obtain the bimetal product.
Described steel core is selected from high-carbon steel, high carbon martensite stainless steel, austenitic stainless steel, spring steel, bearing steel or high-speed steel.
Described body steel is selected from ordinary steel, martensitic stain less steel or austenitic stainless steel.
The complex form of described clad steel comprises Central Composite, three layers of compound or MULTILAYER COMPOSITE.
Clad steel casting of the present invention and compound steel ingot one-heating forming manufacturing approach be the compound and compound two kinds of methods of hot rolling with respect to the blast of prior art, have following advantage and characteristics:
1, owing to reduced the hot procedure from the steel ingot to the cogging together, effectively reduce production cost, than existing technology saving per ton 600-700 unit cost, economic benefit very significantly;
2, improve finished product rate 3-5%;
3, surface and inherent quality are unaffected, and bonding rate reaches more than 96%, and product uses qualification rate still to maintain more than 94%; The steel of two kinds of unlike materials realizes that at combination interface molecule interpenetrates, and forms metallurgical binding.
4, make the stainless cold rolling composite strip steel of cutter, than the low 6000-8000 unit/ton of product that market adopts hot rolling technology to produce, the low 13000-18000 unit/ton of product than market employing blast explained hereafter has the strong market competitiveness, and market prospects are wide.
5, the hot rolling composite strip steel can reach 1.3 tons of every volumes, reaches 2.4 millimeters through the book of hot-strip, pickling, cold rolling after book can reach 0.5～1.0 millimeter the compound cold belt of rolling.Strip width is at 90～520 millimeters.The thick band steel of hot rolling also can further be rolled into one meter wide composite board on ply rolling book plate machine.
6, the clad steel product of compound steel ingot casting and one-heating forming manufacturing meets the Ministry of Science and Technology for many years about the low cost of metal in the composite and metal composite, high performance direction of industry.
The specific embodiment
The method of a kind of compound steel ingot casting of the present invention and heating once and rolling bimetal specifically may further comprise the steps:
The preparation of A, steel core
As the steel core material, according to the requirement of clad steel final finished, design the width and the thickness of steel core with high-carbon steel, high carbon martensite stainless steel, austenitic stainless steel, spring steel, bearing steel or high-speed steel etc., the intercepting steel are as steel core; Steel core is thoroughly removed blemish, corrosion through processing such as grindings, makes steel core surface bright and clean and expose metal true qualities, apparatus for welding and positioning on steel core then; With the tram of assurance steel core in punching block, and when molten steel casting, do not squint.
B, casting are prepared
Steps A gained steel core is positioned in the punching block.Before steel core is placed the entering punching block, should utilize grinding or cleaning equipment that steel core surface is carried out single treatment again, thoroughly remove the remaining corrosion and the defective on surface, keep bright and clean and expose the metal true qualities.Punching block can be slab ingot mould or Fang Mo.
C, casting
As the body steel, after steel core was positioned in the punching block, the molten steel with the body steel adopted the bottom casting cast immediately with ordinary steel, martensitic stain less steel or austenitic stainless steel, and cast temperature is controlled at 1600-1640 ℃, and cooling obtains compound steel ingot; It is more to consider that steel core can absorb heat at the casting initial stage, and the liquid steel temperature that adopts here is than the temperature drift 20-30 degree of conventional casting, and the temperature of conventional casting is 1600 ℃.During casting, speed should not be too fast, especially when riser feeding, wants slow, prevents shrinkage cavity.More than 5 hours, the demoulding obtains compound steel ingot with the mould cooling.
The finishing of C, compound steel ingot
After the compound steel ingot demoulding, remove remaining burr, and finishing is carried out with emery wheel in defective position, surface prevent defective is left to the finished product hot rolling technology, influence surface quality.
D, compound steel ingot heating once and rolling are become a useful person
Compound steel ingot direct heat is rolled into band steel or band steel, carry out necessary subsequent treatment then, obtain the bimetal product.The compression ratio of the steel ingot thickness and the thickness of becoming a useful person requires to require more than 20 for band steel more than 40 for the band steel.Under HTHP, the steel of two kinds of unlike materials realizes that at combination interface molecule interpenetrates, and forms metallurgical binding.The heaviest 1.3 tons of the every volumes that reach of hot-strip, the book of band steel reaches 2.4 millimeters after hot rolling, through pickling, cold rolling after book can reach 1.0 millimeters the compound cold belt of rolling.Strip width is at 90～530 millimeters.The thick band steel of hot rolling also can further be rolled into one meter wide composite board on the book plate mill.
The complex form of the clad steel among the present invention comprises Central Composite, three layers of compound or MULTILAYER COMPOSITE.
Claims (4)
1. the method for compound steel ingot casting and heating once and rolling bimetal is characterized in that, may further comprise the steps:
The preparation of A, steel core
According to the requirement of clad steel final finished, the width and the thickness of design steel core, the intercepting steel are as steel core; Steel core is processed through grinding, thoroughly removes blemish, corrosion, makes steel core surface bright and clean and expose metal true qualities, apparatus for welding and positioning on steel core then;
B, casting are prepared
Steps A gained steel core is positioned in the punching block; Before steel core is placed the entering punching block, with grinding or cleaning equipment steel core surface is carried out single treatment again, thoroughly remove the remaining corrosion and the defective on surface, keep bright and clean and expose the metal true qualities;
C, casting
Steel core is cast with the molten steel of body steel after being positioned in the punching block, and cast temperature is controlled at 1600-1640 ℃, and more than 4 hours, the demoulding obtains compound steel ingot with the mould cooling;
The finishing of C, compound steel ingot
After the compound steel ingot demoulding, remove remaining burr, and finishing is carried out with emery wheel in defective position, surface;
D, heating once and rolling are become a useful person
Compound steel ingot direct heat is rolled into band steel or band steel, carry out necessary subsequent treatment then, obtain the bimetal product.
2. the method for compound steel ingot casting as claimed in claim 1 and heating once and rolling bimetal, it is characterized in that: described steel core is selected from high-carbon steel, high carbon martensite stainless steel, austenitic stainless steel, spring steel, bearing steel or high-speed steel.
3. the method for compound steel ingot casting as claimed in claim 1 and heating once and rolling bimetal, it is characterized in that: described body steel is selected from ordinary steel, martensitic stain less steel or austenitic stainless steel.
4. the method for compound steel ingot casting as claimed in claim 1 and heating once and rolling bimetal, it is characterized in that: the complex form of described clad steel comprises Central Composite, three layers of compound or MULTILAYER COMPOSITE.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104429741A CN102513519A (en) | 2011-12-26 | 2011-12-26 | Method for making composite steel by composite steel ingot casting and single-heating rolling |
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| CN2011104429741A CN102513519A (en) | 2011-12-26 | 2011-12-26 | Method for making composite steel by composite steel ingot casting and single-heating rolling |
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| CN102513519A true CN102513519A (en) | 2012-06-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639395A (en) * | 2013-12-25 | 2014-03-19 | 马鞍山市博友神斧刃模具厂 | Producing method of metallurgical bonding steel cutters |
| CN104785757A (en) * | 2015-03-27 | 2015-07-22 | 辽宁科技大学 | Multi-core reducing multi-ladle co-casting method and device for casting large composite steel ingots |
Citations (4)
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| CN1511662A (en) * | 2002-12-30 | 2004-07-14 | 上海泛屹复合钢有限公司 | Process for preparing composite cutter casting steel ingot and composite steel |
| CN1721117A (en) * | 2004-07-13 | 2006-01-18 | 上海集思复合钢技术开发有限公司 | Method for producing surface compound cutter billet by horizontal electro-slag surfacing |
| CN101099975A (en) * | 2007-08-02 | 2008-01-09 | 上海泛屹复合钢有限公司 | Method for manufacturing two-layer surface composite steel |
| CN101104178A (en) * | 2007-08-02 | 2008-01-16 | 上海泛屹复合钢有限公司 | Method for manufacturing composite strip steel for wood blade |
-
2011
- 2011-12-26 CN CN2011104429741A patent/CN102513519A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1511662A (en) * | 2002-12-30 | 2004-07-14 | 上海泛屹复合钢有限公司 | Process for preparing composite cutter casting steel ingot and composite steel |
| CN1721117A (en) * | 2004-07-13 | 2006-01-18 | 上海集思复合钢技术开发有限公司 | Method for producing surface compound cutter billet by horizontal electro-slag surfacing |
| CN101099975A (en) * | 2007-08-02 | 2008-01-09 | 上海泛屹复合钢有限公司 | Method for manufacturing two-layer surface composite steel |
| CN101104178A (en) * | 2007-08-02 | 2008-01-16 | 上海泛屹复合钢有限公司 | Method for manufacturing composite strip steel for wood blade |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639395A (en) * | 2013-12-25 | 2014-03-19 | 马鞍山市博友神斧刃模具厂 | Producing method of metallurgical bonding steel cutters |
| CN103639395B (en) * | 2013-12-25 | 2015-12-02 | 马鞍山市博友神斧刃模具厂 | A kind of production method of inlaying steel cutlery metallurgical binding |
| CN104785757A (en) * | 2015-03-27 | 2015-07-22 | 辽宁科技大学 | Multi-core reducing multi-ladle co-casting method and device for casting large composite steel ingots |
| CN104785757B (en) * | 2015-03-27 | 2016-11-30 | 辽宁科技大学 | A kind of multicore many bags of reduction water the method and device of composite casting large-scale steel ingot altogether |
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Application publication date: 20120627 |